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Scalable rate control for video transmission over UMTS

机译:通过UMTS进行视频传输的可扩展速率控制

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摘要

This paper proposes a mechanism for the congestion control for video transmission over Universal Mobile Telecommunications System (UMTS). Our scheme is applied when the mobile user experiences real time multimedia content and adopts the theory of a widely accepted rate control method in wired networks, namely equation-based rate control. In this approach, the transmission rate of the multimedia data is determined as a function of the packet loss rate, the round trip time and the packet size and the server explicitly adjusts its sending rate as a function of these parameters. Through a number of simulations and experiments we validate the correctness and measure the performance and efficiency of the mechanism. A first level of evaluation is carried out using the ns-2 simulator. A second level then validates the proposed mechanism in real world traffic scenarios by performing experiments in a commercial UMTS network.
机译:本文提出了一种用于通过通用移动电信系统(UMTS)进行视频传输的拥塞控制的机制。我们的方案适用于移动用户体验实时多媒体内容并采用有线网络中广泛接受的速率控制方法的理论,即基于方程的速率控制。在这种方法中,根据数据包丢失率,往返时间和数据包大小确定多媒体数据的传输速率,然后服务器根据这些参数显式调整其发送速率。通过大量的仿真和实验,我们验证了该正确性,并测量了该机制的性能和效率。使用ns-2仿真器执行第一级评估。然后,第二级通过在商用UMTS网络中进行实验来验证现实交通场景中的提议机制。

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